Ernest is definitely a paid actor planted in the audience, but Melvin was genuinely -and appropriately- scared shitless by that harpy's shrill role-playing. I imagine that, when she flirts, she starts out as the seductively smooth talking local art gallery patron, and if that doesn't work, then she becomes a no nonsense bitch that demands an immediate public screw.

At that point you can text back and onward about the fun things you might carry on during your small adventure. Or, if it's a woman you're with, that you were being playful with before you left for work, you can say something like: how to flirt with a girl over text